28347982 has 16 divisors (see below), whose sum is σ = 46080720. Its totient is φ = 13001472.

The previous prime is 28347967. The next prime is 28347989. The reversal of 28347982 is 28974382.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28347989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 894 + ... + 7582.

It is an arithmetic number, because the mean of its divisors is an integer number (2880045).

Almost surely, 2^28347982 is an apocalyptic number.

28347982 is a deficient number, since it is larger than the sum of its proper divisors (17732738).

28347982 is a wasteful number, since it uses less digits than its factorization.

28347982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6867.

The product of its digits is 193536, while the sum is 43.

The square root of 28347982 is about 5324.2822990521. The cubic root of 28347982 is about 304.9116719950.

It can be divided in two parts, 2834 and 7982, that added together give a square (10816 = 104²).

The spelling of 28347982 in words is "twenty-eight million, three hundred forty-seven thousand, nine hundred eighty-two".